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Finding the Fourth Proportional to 647,747.55, 893,602.53 and 375,657.75

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Solution

The fourth proportional to 647,747.55, 893,602.53 and 375,657.75 is: 518,240.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,747.55 : 893,602.53 = 375,657.75 : x
  2. Step 2: Convert to fraction form
    647,747.55/893,602.53 = 375,657.75/x
  3. Step 3: Cross multiply
    647,747.55x = 893,602.53 × 375,657.75
  4. Step 4: Simplify right side
    647,747.55x = 335,688,715,814.11
  5. Step 5: Solve for x
    x = 335,688,715,814.11/647,747.55
  6. Step 6: Final answer
    x = 518,240.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.